[FE training-materials-updates] labs/buildroot-advanced: update with Buildroot 2017.08

[Thomas Petazzoni]

Repository : git://git.free-electrons.com/training-materials.git
On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=8c64acc0bc159daa5a9e155dc548b2c060778b58

>---------------------------------------------------------------

commit 8c64acc0bc159daa5a9e155dc548b2c060778b58
Author: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Date:   Tue Oct 17 13:40:07 2017 +0200

    labs/buildroot-advanced: update with Buildroot 2017.08
    
    We now need an external.desc file to describe the external directory.
    
    Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>


>---------------------------------------------------------------

8c64acc0bc159daa5a9e155dc548b2c060778b58
 labs/buildroot-advanced/buildroot-advanced.tex | 1 +
 1 file changed, 1 insertion(+)

diff --git a/labs/buildroot-advanced/buildroot-advanced.tex b/labs/buildroot-advanced/buildroot-advanced.tex
index e572147..3957b6d 100644
--- a/labs/buildroot-advanced/buildroot-advanced.tex
+++ b/labs/buildroot-advanced/buildroot-advanced.tex
@@ -227,6 +227,7 @@ Your \code{BR2_EXTERNAL} tree should look like this:
 +-- configs
 |   +-- felabs_defconfig
 +-- Config.in
++-- external.desc
 +-- external.mk
 \end{verbatim}